Finding the Fourth Proportional to 318,638.60, 477,266.70 and 283,617.80
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Solution
The fourth proportional to 318,638.60, 477,266.70 and 283,617.80 is: 424,811.47
Step by Step Solution
- Step 1: Write the proportion equation
318,638.60 : 477,266.70 = 283,617.80 : x - Step 2: Convert to fraction form
318,638.60/477,266.70 = 283,617.80/x - Step 3: Cross multiply
318,638.60x = 477,266.70 × 283,617.80 - Step 4: Simplify right side
318,638.60x = 135,361,331,467.26 - Step 5: Solve for x
x = 135,361,331,467.26/318,638.60 - Step 6: Final answer
x = 424,811.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.